1/* 2 * Copyright (c) 2002-2004 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Nathan Binkert 29 * Steve Reinhardt 30 */ 31 32#ifndef __OBJECT_FILE_HH__ 33#define __OBJECT_FILE_HH__ 34 35#include <limits> 36#include <string> 37 38#include "base/logging.hh" 39#include "base/types.hh" 40 41class PortProxy;
| 1/* 2 * Copyright (c) 2002-2004 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Nathan Binkert 29 * Steve Reinhardt 30 */ 31 32#ifndef __OBJECT_FILE_HH__ 33#define __OBJECT_FILE_HH__ 34 35#include <limits> 36#include <string> 37 38#include "base/logging.hh" 39#include "base/types.hh" 40 41class PortProxy;
|
42class SymbolTable; 43 44class ObjectFile 45{ 46 public: 47 48 enum Arch { 49 UnknownArch, 50 Alpha, 51 SPARC64, 52 SPARC32, 53 Mips, 54 X86_64, 55 I386, 56 Arm64, 57 Arm, 58 Thumb, 59 Power, 60 Riscv64, 61 Riscv32 62 }; 63 64 enum OpSys { 65 UnknownOpSys, 66 Tru64, 67 Linux, 68 Solaris, 69 LinuxArmOABI, 70 FreeBSD 71 }; 72 73 protected: 74 const std::string filename; 75 uint8_t *fileData; 76 size_t len; 77 78 Arch arch; 79 OpSys opSys; 80 81 ObjectFile(const std::string &_filename, size_t _len, uint8_t *_data, 82 Arch _arch, OpSys _opSys); 83 84 public: 85 virtual ~ObjectFile(); 86 87 static const Addr maxAddr = std::numeric_limits<Addr>::max(); 88 89 virtual bool loadSections(PortProxy& mem_proxy, 90 Addr mask = maxAddr, Addr offset = 0); 91 92 virtual bool loadAllSymbols(SymbolTable *symtab, Addr base = 0, 93 Addr offset = 0, Addr mask = maxAddr) = 0; 94 virtual bool loadGlobalSymbols(SymbolTable *symtab, Addr base = 0, 95 Addr offset = 0, Addr mask = maxAddr) = 0; 96 virtual bool loadLocalSymbols(SymbolTable *symtab, Addr base = 0, 97 Addr offset = 0, Addr mask = maxAddr) = 0; 98 virtual bool loadWeakSymbols(SymbolTable *symtab, Addr base = 0, 99 Addr offset = 0, Addr mask = maxAddr) 100 { return false; } 101 102 virtual ObjectFile *getInterpreter() const { return nullptr; } 103 virtual bool relocatable() const { return false; } 104 virtual Addr mapSize() const 105 { panic("mapSize() should only be called on relocatable objects\n"); } 106 virtual void updateBias(Addr bias_addr) 107 { panic("updateBias() should only be called on relocatable objects\n"); } 108 virtual Addr bias() const { return 0; } 109 110 virtual bool hasTLS() { return false; } 111 112 Arch getArch() const { return arch; } 113 OpSys getOpSys() const { return opSys; } 114 115 protected: 116 117 struct Section { 118 Addr baseAddr; 119 uint8_t *fileImage; 120 size_t size; 121 }; 122 123 Addr entry; 124 Addr globalPtr; 125 126 Section text; 127 Section data; 128 Section bss; 129 130 bool loadSection(Section *sec, PortProxy& mem_proxy, Addr mask, 131 Addr offset = 0); 132 void setGlobalPointer(Addr global_ptr) { globalPtr = global_ptr; } 133 134 public: 135 Addr entryPoint() const { return entry; } 136 137 Addr globalPointer() const { return globalPtr; } 138 139 Addr textBase() const { return text.baseAddr; } 140 Addr dataBase() const { return data.baseAddr; } 141 Addr bssBase() const { return bss.baseAddr; } 142 143 size_t textSize() const { return text.size; } 144 size_t dataSize() const { return data.size; } 145 size_t bssSize() const { return bss.size; } 146 147 /* This function allows you to override the base address where 148 * a binary is going to be loaded or set it if the binary is just a 149 * blob that doesn't include an object header. 150 * @param a address to load the binary/text section at 151 */ 152 void setTextBase(Addr a) { text.baseAddr = a; }
| 44class SymbolTable; 45 46class ObjectFile 47{ 48 public: 49 50 enum Arch { 51 UnknownArch, 52 Alpha, 53 SPARC64, 54 SPARC32, 55 Mips, 56 X86_64, 57 I386, 58 Arm64, 59 Arm, 60 Thumb, 61 Power, 62 Riscv64, 63 Riscv32 64 }; 65 66 enum OpSys { 67 UnknownOpSys, 68 Tru64, 69 Linux, 70 Solaris, 71 LinuxArmOABI, 72 FreeBSD 73 }; 74 75 protected: 76 const std::string filename; 77 uint8_t *fileData; 78 size_t len; 79 80 Arch arch; 81 OpSys opSys; 82 83 ObjectFile(const std::string &_filename, size_t _len, uint8_t *_data, 84 Arch _arch, OpSys _opSys); 85 86 public: 87 virtual ~ObjectFile(); 88 89 static const Addr maxAddr = std::numeric_limits<Addr>::max(); 90 91 virtual bool loadSections(PortProxy& mem_proxy, 92 Addr mask = maxAddr, Addr offset = 0); 93 94 virtual bool loadAllSymbols(SymbolTable *symtab, Addr base = 0, 95 Addr offset = 0, Addr mask = maxAddr) = 0; 96 virtual bool loadGlobalSymbols(SymbolTable *symtab, Addr base = 0, 97 Addr offset = 0, Addr mask = maxAddr) = 0; 98 virtual bool loadLocalSymbols(SymbolTable *symtab, Addr base = 0, 99 Addr offset = 0, Addr mask = maxAddr) = 0; 100 virtual bool loadWeakSymbols(SymbolTable *symtab, Addr base = 0, 101 Addr offset = 0, Addr mask = maxAddr) 102 { return false; } 103 104 virtual ObjectFile *getInterpreter() const { return nullptr; } 105 virtual bool relocatable() const { return false; } 106 virtual Addr mapSize() const 107 { panic("mapSize() should only be called on relocatable objects\n"); } 108 virtual void updateBias(Addr bias_addr) 109 { panic("updateBias() should only be called on relocatable objects\n"); } 110 virtual Addr bias() const { return 0; } 111 112 virtual bool hasTLS() { return false; } 113 114 Arch getArch() const { return arch; } 115 OpSys getOpSys() const { return opSys; } 116 117 protected: 118 119 struct Section { 120 Addr baseAddr; 121 uint8_t *fileImage; 122 size_t size; 123 }; 124 125 Addr entry; 126 Addr globalPtr; 127 128 Section text; 129 Section data; 130 Section bss; 131 132 bool loadSection(Section *sec, PortProxy& mem_proxy, Addr mask, 133 Addr offset = 0); 134 void setGlobalPointer(Addr global_ptr) { globalPtr = global_ptr; } 135 136 public: 137 Addr entryPoint() const { return entry; } 138 139 Addr globalPointer() const { return globalPtr; } 140 141 Addr textBase() const { return text.baseAddr; } 142 Addr dataBase() const { return data.baseAddr; } 143 Addr bssBase() const { return bss.baseAddr; } 144 145 size_t textSize() const { return text.size; } 146 size_t dataSize() const { return data.size; } 147 size_t bssSize() const { return bss.size; } 148 149 /* This function allows you to override the base address where 150 * a binary is going to be loaded or set it if the binary is just a 151 * blob that doesn't include an object header. 152 * @param a address to load the binary/text section at 153 */ 154 void setTextBase(Addr a) { text.baseAddr = a; }
|